19 citations · 19 across the 7 of their papers we have counts for
7 papers
Off-diagonal geometric phase of atom-electron coupling in hydrogen atom
Guo-Qiang Zhu
In this paper, the off-diagonal geometric phase of thermal state in hydrogen atom under the effects of external magnetic field is considered. Increasing temperature tends to suppre…
Geometric Phase for degenerate states of spin-1 and spin-1/2 pair
Guo-Qiang Zhu
The geometric phase of a bi-particle model is discussed. For different initial states, especially when the initial state is pure or mixed, the geometric phase will show different p…
Quantum Dynamics of Bound Entangled States
Guo-Qiang Zhu, Xiaoguang Wang
By using the partial transpose and realignment method,we study the time evolution of the bound entanglement under the bilinear-biquadratic Hamiltonian. For the initial Horodecki's…
Geometrical phase of thermal state in hydrogen atom
Guo-Qiang Zhu
In this paper, the geometric phase of thermal state in hydrogen atom under the effects of external magnetic field is considered. Especially the effects of the temperature upon the…
Electron-nuclear entanglement in the cold lithium gas
Guo-Qiang Zhu, Jun-Wen Mao, You-Quan Li
We study the ground-state entanglement and thermal entanglement in the hyperfine interaction of the lithium atom. We give the relationship between the entanglement and both tempera…
Entanglement of degenerate ground state for spin 1 and 1/2 pair
You-Quan Li, Guo-Qiang Zhu, Xue-An Zhao
We study the entanglement feature of the ground state of a system composed of spin 1 and 1/2 parts. The concurrence vector is shown to be consistent with the measurement of von Neu…